/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:10:28,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:10:28,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:10:28,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:10:28,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:10:28,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:10:28,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:10:28,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:10:28,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:10:28,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:10:28,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:10:28,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:10:28,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:10:28,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:10:28,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:10:28,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:10:28,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:10:28,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:10:28,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:10:28,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:10:28,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:10:28,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:10:28,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:10:28,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:10:28,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:10:28,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:10:28,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:10:28,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:10:28,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:10:28,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-15 18:10:28,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:10:28,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:10:28,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:10:28,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 18:10:28,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:10:28,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:10:28,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:10:28,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:10:28,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:10:28,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:10:28,170 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:10:28,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:10:28,170 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:10:28,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:10:28,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:10:28,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:10:28,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:10:28,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:10:28,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:10:28,173 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:10:28,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:10:28,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:10:28,173 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:10:28,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:10:28,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:10:28,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:10:28,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:10:28,403 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:10:28,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2022-03-15 18:10:28,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c7e52d66/1d1ec0dab3704dfa9768f1bdd82ebb95/FLAG20bd9a402 [2022-03-15 18:10:28,858 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:10:28,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2022-03-15 18:10:28,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c7e52d66/1d1ec0dab3704dfa9768f1bdd82ebb95/FLAG20bd9a402 [2022-03-15 18:10:28,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c7e52d66/1d1ec0dab3704dfa9768f1bdd82ebb95 [2022-03-15 18:10:28,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:10:28,880 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:10:28,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:10:28,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:10:28,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:10:28,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:10:28" (1/1) ... [2022-03-15 18:10:28,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381077cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:28, skipping insertion in model container [2022-03-15 18:10:28,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:10:28" (1/1) ... [2022-03-15 18:10:28,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:10:28,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:10:29,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2022-03-15 18:10:29,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:10:29,196 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:10:29,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2022-03-15 18:10:29,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:10:29,262 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:10:29,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29 WrapperNode [2022-03-15 18:10:29,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:10:29,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:10:29,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:10:29,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:10:29,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,316 INFO L137 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2022-03-15 18:10:29,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:10:29,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:10:29,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:10:29,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:10:29,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:10:29,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:10:29,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:10:29,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:10:29,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (1/1) ... [2022-03-15 18:10:29,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:10:29,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:10:29,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 18:10:29,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 18:10:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:10:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:10:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 18:10:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:10:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:10:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 18:10:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 18:10:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:10:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:10:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:10:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:10:29,410 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:10:29,485 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:10:29,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:10:29,656 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:10:29,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:10:29,663 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 18:10:29,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:10:29 BoogieIcfgContainer [2022-03-15 18:10:29,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:10:29,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:10:29,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:10:29,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:10:29,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:10:28" (1/3) ... [2022-03-15 18:10:29,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2392c849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:10:29, skipping insertion in model container [2022-03-15 18:10:29,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:10:29" (2/3) ... [2022-03-15 18:10:29,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2392c849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:10:29, skipping insertion in model container [2022-03-15 18:10:29,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:10:29" (3/3) ... [2022-03-15 18:10:29,671 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2022-03-15 18:10:29,674 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:10:29,674 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:10:29,674 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-03-15 18:10:29,674 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:10:29,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,702 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:10:29,711 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 18:10:29,739 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:10:29,744 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:10:29,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 18:10:29,752 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:10:29,758 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 91 transitions, 190 flow [2022-03-15 18:10:29,760 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 91 transitions, 190 flow [2022-03-15 18:10:29,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 190 flow [2022-03-15 18:10:29,813 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2022-03-15 18:10:29,814 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 18:10:29,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 3/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-03-15 18:10:29,820 INFO L116 LiptonReduction]: Number of co-enabled transitions 768 [2022-03-15 18:10:32,528 INFO L131 LiptonReduction]: Checked pairs total: 1617 [2022-03-15 18:10:32,529 INFO L133 LiptonReduction]: Total number of compositions: 94 [2022-03-15 18:10:32,534 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 19 transitions, 46 flow [2022-03-15 18:10:32,544 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 49 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 49 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-03-15 18:10:32,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:32,549 INFO L514 BasicCegarLoop]: trace histogram [1] [2022-03-15 18:10:32,549 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 18:10:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash 347, now seen corresponding path program 1 times [2022-03-15 18:10:32,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:32,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414784021] [2022-03-15 18:10:32,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:32,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:32,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:32,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:32,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414784021] [2022-03-15 18:10:32,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414784021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:32,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:32,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-03-15 18:10:32,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [391770067] [2022-03-15 18:10:32,635 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:32,636 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:32,639 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2022-03-15 18:10:32,639 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:32,642 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:32,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 18:10:32,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 18:10:32,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 18:10:32,658 INFO L87 Difference]: Start difference. First operand has 50 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 49 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:32,683 INFO L93 Difference]: Finished difference Result 49 states and 81 transitions. [2022-03-15 18:10:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 18:10:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-03-15 18:10:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:32,696 INFO L225 Difference]: With dead ends: 49 [2022-03-15 18:10:32,696 INFO L226 Difference]: Without dead ends: 44 [2022-03-15 18:10:32,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 18:10:32,700 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:32,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-03-15 18:10:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-03-15 18:10:32,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-03-15 18:10:32,728 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 1 [2022-03-15 18:10:32,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:32,728 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-03-15 18:10:32,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-03-15 18:10:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-03-15 18:10:32,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:32,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-03-15 18:10:32,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:10:32,730 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 18:10:32,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 10589404, now seen corresponding path program 1 times [2022-03-15 18:10:32,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:32,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358388963] [2022-03-15 18:10:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:32,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:32,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:32,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358388963] [2022-03-15 18:10:32,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358388963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:32,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:32,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:10:32,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2066233467] [2022-03-15 18:10:32,824 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:32,824 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:32,824 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2022-03-15 18:10:32,825 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:32,825 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:32,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:10:32,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:10:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:32,826 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:32,845 INFO L93 Difference]: Finished difference Result 41 states and 62 transitions. [2022-03-15 18:10:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-03-15 18:10:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:32,846 INFO L225 Difference]: With dead ends: 41 [2022-03-15 18:10:32,846 INFO L226 Difference]: Without dead ends: 35 [2022-03-15 18:10:32,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:32,847 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:32,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:32,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-03-15 18:10:32,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-03-15 18:10:32,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.65625) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2022-03-15 18:10:32,850 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 53 transitions. Word has length 4 [2022-03-15 18:10:32,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:32,851 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 53 transitions. [2022-03-15 18:10:32,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,851 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2022-03-15 18:10:32,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 18:10:32,851 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:32,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:32,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:10:32,852 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 18:10:32,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:32,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1934593913, now seen corresponding path program 1 times [2022-03-15 18:10:32,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:32,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285563058] [2022-03-15 18:10:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:32,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:32,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:32,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285563058] [2022-03-15 18:10:32,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285563058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:32,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:32,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:10:32,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [228769374] [2022-03-15 18:10:32,893 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:32,894 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:32,895 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2022-03-15 18:10:32,895 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:32,895 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:32,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:10:32,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:32,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:10:32,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:32,896 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:32,920 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-03-15 18:10:32,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:32,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 18:10:32,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:32,920 INFO L225 Difference]: With dead ends: 28 [2022-03-15 18:10:32,921 INFO L226 Difference]: Without dead ends: 28 [2022-03-15 18:10:32,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:32,921 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:32,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-03-15 18:10:32,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-03-15 18:10:32,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.36) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-03-15 18:10:32,924 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 7 [2022-03-15 18:10:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:32,924 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-03-15 18:10:32,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-03-15 18:10:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-03-15 18:10:32,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:32,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:32,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 18:10:32,925 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 18:10:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1897824170, now seen corresponding path program 1 times [2022-03-15 18:10:32,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:32,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536898372] [2022-03-15 18:10:32,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:32,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:32,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536898372] [2022-03-15 18:10:32,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536898372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:32,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:32,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 18:10:32,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2102232772] [2022-03-15 18:10:32,988 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:32,988 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:32,989 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2022-03-15 18:10:32,989 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:32,990 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:32,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:10:32,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:32,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:10:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:32,990 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:33,011 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-03-15 18:10:33,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:10:33,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-03-15 18:10:33,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:33,012 INFO L225 Difference]: With dead ends: 23 [2022-03-15 18:10:33,012 INFO L226 Difference]: Without dead ends: 15 [2022-03-15 18:10:33,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:10:33,027 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:33,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-03-15 18:10:33,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-03-15 18:10:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-03-15 18:10:33,029 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2022-03-15 18:10:33,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:33,029 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-03-15 18:10:33,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-03-15 18:10:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 18:10:33,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:10:33,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:10:33,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:10:33,030 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-03-15 18:10:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:10:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1296993628, now seen corresponding path program 1 times [2022-03-15 18:10:33,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:10:33,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449767385] [2022-03-15 18:10:33,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:10:33,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:10:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:10:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:10:33,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:10:33,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449767385] [2022-03-15 18:10:33,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449767385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:10:33,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:10:33,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 18:10:33,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1474342216] [2022-03-15 18:10:33,109 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:10:33,109 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:10:33,110 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2022-03-15 18:10:33,110 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:10:33,110 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:10:33,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:10:33,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:10:33,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:10:33,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:33,111 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:33,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:10:33,121 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-03-15 18:10:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:10:33,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-03-15 18:10:33,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:10:33,122 INFO L225 Difference]: With dead ends: 8 [2022-03-15 18:10:33,122 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 18:10:33,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:10:33,122 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:10:33,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:10:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 18:10:33,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 18:10:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 18:10:33,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-03-15 18:10:33,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:10:33,124 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 18:10:33,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:10:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 18:10:33,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 18:10:33,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-03-15 18:10:33,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-03-15 18:10:33,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 18:10:33,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-03-15 18:10:33,126 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-03-15 18:10:33,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 18:10:33,128 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-03-15 18:10:33,130 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 18:10:33,130 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 18:10:33,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 06:10:33 BasicIcfg [2022-03-15 18:10:33,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 18:10:33,132 INFO L158 Benchmark]: Toolchain (without parser) took 4252.64ms. Allocated memory was 255.9MB in the beginning and 335.5MB in the end (delta: 79.7MB). Free memory was 197.2MB in the beginning and 194.8MB in the end (delta: 2.4MB). Peak memory consumption was 81.6MB. Max. memory is 8.0GB. [2022-03-15 18:10:33,132 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 215.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:10:33,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.54ms. Allocated memory was 255.9MB in the beginning and 335.5MB in the end (delta: 79.7MB). Free memory was 197.0MB in the beginning and 297.5MB in the end (delta: -100.5MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2022-03-15 18:10:33,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.49ms. Allocated memory is still 335.5MB. Free memory was 297.5MB in the beginning and 295.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:10:33,133 INFO L158 Benchmark]: Boogie Preprocessor took 26.62ms. Allocated memory is still 335.5MB. Free memory was 295.4MB in the beginning and 293.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:10:33,133 INFO L158 Benchmark]: RCFGBuilder took 319.80ms. Allocated memory is still 335.5MB. Free memory was 293.8MB in the beginning and 279.7MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-15 18:10:33,133 INFO L158 Benchmark]: TraceAbstraction took 3466.75ms. Allocated memory is still 335.5MB. Free memory was 279.2MB in the beginning and 194.8MB in the end (delta: 84.4MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2022-03-15 18:10:33,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 215.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 380.54ms. Allocated memory was 255.9MB in the beginning and 335.5MB in the end (delta: 79.7MB). Free memory was 197.0MB in the beginning and 297.5MB in the end (delta: -100.5MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.49ms. Allocated memory is still 335.5MB. Free memory was 297.5MB in the beginning and 295.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.62ms. Allocated memory is still 335.5MB. Free memory was 295.4MB in the beginning and 293.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 319.80ms. Allocated memory is still 335.5MB. Free memory was 293.8MB in the beginning and 279.7MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3466.75ms. Allocated memory is still 335.5MB. Free memory was 279.2MB in the beginning and 194.8MB in the end (delta: 84.4MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 92 PlacesBefore, 23 PlacesAfterwards, 91 TransitionsBefore, 19 TransitionsAfterwards, 768 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 1617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 908, positive: 760, positive conditional: 0, positive unconditional: 760, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 455, positive: 422, positive conditional: 0, positive unconditional: 422, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 908, positive: 338, positive conditional: 0, positive unconditional: 338, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 455, unknown conditional: 0, unknown unconditional: 455] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 114 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 18:10:33,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...